19578988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2633}}^1$

素因数の和:2674

約数の個数: 36

約数和(自身を含む): 40489848

約数和(自身を除く): 20910860

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 169, 286, 338, 572, 676, 1859, 2633, 3718, 5266, 7436, 10532, 28963, 34229, 57926, 68458, 115852, 136916, 376519, 444977, 753038, 889954, 1506076, 1779908, 4894747, 9789494, 19578988]

約数ペア:

[(1, 19578988), (2, 9789494), (4, 4894747), (11, 1779908), (13, 1506076), (22, 889954), (26, 753038), (44, 444977), (52, 376519), (143, 136916), (169, 115852), (286, 68458), (338, 57926), (572, 34229), (676, 28963), (1859, 10532), (2633, 7436), (3718, 5266)]